The cvs build creates a new module crc-itu-t which is not jet recognized by the ebuild. However it is nessecary for loading the driver module.
Here a patch that works for me
--- rt2x00-9999.ebuild.bak 2006-08-09 14:26:42.000000000 +0200
+++ rt2x00-9999.ebuild 2006-08-09 14:35:09.000000000 +0200
@@ -77,7 +77,7 @@
- MODULE_NAMES="80211(rt2x00:) rate_control(rt2x00:)"
+ MODULE_NAMES="crc-itu-t(rt2x00:) 80211(rt2x00:) rate_control(rt2x00:)"
# Generate the config file now
echo "# Config file generated by portage" > config
cvs has already been updated with the correct fix - and this is not it
ok, so crc-itu-t is only needed for usb modules ... thx for the info and doing it correctly